#include <stdio.h>
int DayofYear(int year, int month, int day);
int dayTab[2][13] = {   	  
    {0,31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31},
    {0,31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}};

int main()
{   	  
    int year, month, day;
    printf("Please enter year, month, day:");
    scanf("%d,%d,%d", &year, &month, &day);
    printf("yearDay = %d\n", DayofYear(year, month, day));
    return 0;
}   	  

int DayofYear(int year, int month, int day)
{   	  
    int i, leap;
    leap = year % 4 == 0 && year % 100 != 0 || year % 400 == 0;
    for (i = 1; i < month; i++)
    {   	  
        day +=  dayTab[leap][i];
    }
    return day;
}   	  